Condenser for ice machines



Aug. 7, 1928. 1,679,430

a. 1. LEONARD commusnx FOR 1cm mourns Filed Jan. 1927 ZSheets-Sheet' lfly/.

INVENTOR." $97 ,Q/JOZLOMAM/ Aug. 7, 1928. I 1,679,430

G. I. LEONARD CONDENSER FOR ICE MACHINES Filed Jan. 1927 2 Sheets-Sheet2 I N V E NT 0 R Patented Aug. 7, 1928.

UNITED STATES GEORGE I. LEONARD,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

CONDENSER ,ron ICE mncrmvns.

. Application filed J'anuary 8,. 1927. Serial No. 159,881.

In any mass of pipes laid rather closely together, in directing currentsof air against such a mass, many conflicting air currents are set up,with the result that a great deal of the efi'ectiveness is lost.

In my invention I make use of the natural stream lines principle, bycreating an air suction past a refrigerant receiver, length ing aircurrents which enter from7the top of A base through an orifice. A pipeleads from 'the discharge side of the compressor to a gas receiving tankwithin the base and from which extend a multiplicity of pipes whlchconnect at their other end to a condensate receiver. An air intake portis located at this end of the base.

' In Figure 2 of Sheet 2 is shown a horizontal cross section of a hollowbase containing a gas receiving tank as in Figure 1, and leading fromthis are lines of pipe consisting of straight runs with reverse bends;but having the straight runs crosswise of the base.

At the other end these pipes connect to the condensate receiver. Thebase in this case also has a suction air intake located next to thecondensate receiver. In Figure 1, I have shown a base 1 on which ismounted a motor 2, direct connected to a coupling 3 and a fan 4, andthrough the shaft 5 to a pump 6. The pump 6 shows a suction port 7 andin dotted lines the discharge port 8 to which Is connected a pipe 9 thatattaches at its lower end to a tubular manifold 10.

Branching from the manifold 10 are shown four (4) lines of pipe 11,other lines of pipes supposedly lie back of those shown.

These pipes enter at their other'end the receiving chamber 12 whereliquid refrigerant is caught after condensation. Surrounding the fan andthe pump is a casing 13 which rests on the base. At 14 is a rectangularopening in the top of the base which extends to nearly the width of thecasing 13, and

through which air is drawn. At 15 is an opening in the sides of the baseof suflicient size to pass all theair that the fan is capable ofthrowing. It will be observed that as the fan 4 is rotated in a righthand direc- 6t tion it will give rise to an area of low pres sure on thepump side, this will result-in air entering the open portion of the baseat 15and 1t Wlll pass in the direction of the arrows 16, longitudinallywith the pipes 11,

out through the opening 14 and finally out of the contracted openingsurrounding the fan. The compressed gas coming from the pump 111 tube 9,after entering manifold 10 will then be distributed to the pipes 11,following direction of arrows 20, and as it condenses Wlll pass into thecontainer 12, thus setting up a current within the pipes in a I reversedirection to the. passage of the air through the base.

k On Sheet 2, Figure 2, is shown a top view of another arrangement ofpipes, but in WlllCh the principle governing is the same.

I have used the same numbers as on Figure 1, except that the opening 17in mani fold 10 and the dotted lines 18 show the position of. therectangular orifice 14. In both figures, a plate 19 extends from themanifold end of the base to the side opening 15 and underlies the pipes,in order to confine the air current more closely to the channel 'inwhlch the pipes he. In Figure 2 the pipe 9 is supposed to enter themanifold 10 at 17, the arrows 20' show the direction of the flow of thegas 1n the pipes 11. In this case each pipe has a number of reversebends,

but the gas becomes successively cooler as I it approaches the opening15, and finally enters the container 12. I have, for clarity,

only shown two runs of pipe as they lie one above the other.

The air current shown by arrows 16 is thus really in reverse directionto thegeneral direction ofthe gas within the pipes, and after traversingthe pipes flows upward through the opening 14 shown by dotted lines 18into the chamber surrounding the pump. By these arrangements a decidedgain in efficiency 1s efl'ected, as it produces so rapid a current ofair past the condenser pipes that 1 a much smaller length of pipe isnecessary to produce an equivalent amount of cooling, and as thecoldestair in the systems passes in at the container end of the line, and thetemperature at this end establishes the 11 amount of ressure that mustbe carried, it thereforeefiects a double economy in cost' ofconstruction and in operating expense.

I hereby make reference to an application Serial No. 159,882, filed Jan.8, 1927 for a patent for method of cooling air cooled Iefrigeratingmachines.

Therefore I claim:

1. The combination with an air conduit having admission and dischargeports; of means for effecting the passage of air into the admissionport, through the conduit and through the discharge port; a gasreceiving chamber; a condensate receiving chamber; piping Within saidconduit extending substantially along the path of and following throughsaid conduit and connecting said chambers; said chambers and the pipingconnecting them being arranged to direct the flow of gas and condensateto the condensate receiving chamber oppositely to the direction of flowof air along the piping; and a pump connected with the gas receivingchamher to force gas thereunto and into the piping connecting thechambers.

2. The combination with an air conduit having admission and dischargeports; of means for effecting the passage of air into the admissionport, through the conduit and through the discharge port; a gasreceiving chamber within said conduit; a condensate receiving chamber;piping Within said con duit extending substantially alongvthe path ofand following through said conduit and connecting said chambers; saidchambers and the piping connecting them being arranged to direct theflow of gas and condensate to the condensate receiving chamberoppositely to the direction of flow of air along the piping; and a pumpconnected with the gas receiving chamber to force gas thereunto and intothe pipin connecting the chambers.

The com ination with an air conduit having admission and dischargeports; of means for eifecting the passage of air into the admissionport, through the conduit and through the discharge port; a gasreceiving chamber a condensate receiving chamber within said conduit;piping within said conduit extending substantially along the path of andfollowing through said conduit and connecting said chambers; saidchambers and the piping connecting them being arranged to direct theflow of gas and condensate to the condensate receiving chamberoppositely to thedirection of flow of air along the piping; and a pumpconnected with the gas receiving chamber to force gas thereunto and intothe piping connecting the chambers.

4. The combination with an air conduit having admission and dischargeports; of means for effecting the passage of air into the admissionport, through the conduit and through the discharge port; a gasreceiving chamber Within said conduit; a condensate receiving chamberWithin said conduit; pip ing within said conduit extending substantiallyalong the path of and following through said conduit and connecting saidchambers; said chambers and the piping connecting them being arranged todirect the flow of gas and condensate to the condensate receivingchamber oppositely to the direction of flow of air along the piping; anda pump connected Wit-h the gas receiving chamber to force gas thereuntoand into the piping connecting the chambers.

GEORGE I. LEONARD.

